Add esp32 UM_TinyPico stubs to publish

[Josverl]

Discussed in #636

^{Originally posted by G234i September 6, 2022}
So I am new into microcontrollers and micropython, but I have a UM_TinyPico board I am trying to mess around with.
I am using VS Code and I managed to get the "core" and "Generic" stubs to work using pip install micropython-esp32-stubs.

However I am missing some UM_TinyPico specific imports (as those are not included after running the pip install install command?).
I tried passing micropython-esp32--stubs as an argument to the pip install command (of course replacing )
but something leads me to believe that that is not intended to work like that.

Is there another way to get those board specific stubs other than cloning the repo by hand to the project folder/using symbolic links?